bouchet



(No Model.) 2 Sheets-Sheet 1. M. BOUOHET.

ADDING MACHINE.

No. 314,561. Patented Mar; 31, 1885.

INVENTDR.

& mm?

2 Sheets-Sheet 2.

(No Model.)

M. BOUGHET.

ADDING MACHINE.

No. 314,561. Patented Mar. 31, 1885.

E g E i WITNESS ES. f

INVENTOR- MOI/i 17 UNrrnn STATES Parent Ornate I MICHAEL BOUOHET, OF LOUISVILLE, KENTUGKY, ASSIGNOR OF ONE-THIRD TO F. MADDEN, OF SAME PLACE.

ADDING-MACHINE.

"?ECIPICATION fu 'f.i .illg part; of Letters Patent No. 314.561, dated March 31, 1885.

Application filed April 4, 1884. (No model.)

To all whom it may concern:

Be it known that I, MIonAnL Boner-1E1, a citizen of the United States, residing at Louisville, in the county of Jefferson and State of 5 Kentucky, haveinvented certain new and useful Improvements in Adding Machines, of 'which the following is a description.

The object of my invention is to provide a machine for adding figures that will be cheap, durable, reliable, and not liable to get out of order, by means of which much valuable time and labor is saved, thereby assisting bookkeepers and others in adding their accounts.

My present invention is in the nature of an improvement upon the adding-machine for which Letters Patent No. 251,823 were granted me January 3, 1882, in which the addition is performed by a series of curved rack-bars acting upon a toothed roller or elongated pinion,

and which rack-bars are provided with teeth which give a variable throw to the elongated pinion to turn a numbered wheel one figure, two figures, three figures, &c., up to nine, according to which rack-bar is operated upon.

My invention consists in certain features of improvement, which I will first describe, and then point out in the claims.

Figure 1 is a perspective view of the front of the maehine,with the case and other parts 0 removed in order to show the interior arrangement of the several parts. Fig. 2 is a perspective View of the machine, taken from the back to show the operatingracks and footrest of the levers. Fig. 3 is a top view of the numbered wheels and the pinion in front of same. Fig. 4 is an enlarged view in perspective of one of the small operating-pinions, showing the three-pointed device on its end. Fig. 5 is a perspective view of a set of operating levers and racks, showing the arrangement of the several parts. Fig. 6 is a perspective view of the first number-wheel (indicating units) and part of the toothed roller or elongated pinion. Fig. 7 is a perspective view of the second number-wheel, (indicating tens.)

Fig. 8 is a perspective view of the third number-wheel, (indicating hundreds.)

A represents the frame, which is made of metal and of the form shown in the drawings.

B, Fig. 2, is a raised bar on the bottom of the machine forming a support for the back end of the levers.

G 0, Figs. 1 and 2, are standards secured to the bottom of the machine, and D is a round bar passing through them, forming a support for the front ends of the operating-levers,and to which the arms F are hinged. (See Fig. 5.)

E are the operating levers, which are fulcrumed or jointed to the arms F, and just above their fulcrums have upwardly-extend- 6o ing curved rack-bars L, with teeth upon the inner side of the curve. These racks engage with the elongated pinion or toothed roller 1. The outer ends of the levers E are provided with vertical studs K, having push-buttons on top, each of which is designated by a differentnumber to correspond with the number of teeth of its rack, and thus giving a throw to the toothed roller I sufiicient to turn the number-wheels a distance to measure the same number of spaces as indicated by the number 011 the push-button. The stud I; and the end of the lever carrying the stud are held up and the rack Lis held away from the toothed roller 1 by the action of a spring, G, for each 7 of them. hen stud it is depressed, lever E is rocked on the fulcrum-j oint connecting it to arm F, and this initial motion throws rack L into engagement with the toothed roller 1. Immediately following the initial movement the lever E and arm F move together, rocking upon the rod D, and the rack, being in engagement with the toothed roller 1, turns the same a distance represented by the number of the push-button on that lever. After thetoothed S 5 roller has been moved, a. pawl, P, Fig. 1, engages with a ratchet, Q, on said roller and holds it to its place, and as soon as pressure on the stud K is removed the spring G rocks the rack L out of engagement with the toothed o roller and pulls down the rack and arm F about the rod D as a center, allowing the curved ends of arms F to drop down on bar 13.

For the sake of compactness, the levers E and their immediate attachments are arranged 5 in pairs, with the exception of the first one, representing units, and shown on the right of Fig. 2. Thus in Fig. 5 the parts marked with the letters primed, E F G, &c., represent a twin or companion structure to the one just described.

It is. the first numbered wheel, which represents units, and is mounted upon the end of the toothed roller I. This wheel is made with a flange, S, in the left side, with anotch. U, on the same, and a trigger, T, projecting laterally. This wheel has figures from 0 to 9 011 its periphery, and has a small pin, N, (see Fig. 3,) through the boss.

Vis the second number-wheel, turning loosely on an axis. This wheel hasa cog-gear, \V, on one side and a flange, X, on the other, which flange has a notch, Z, and trigger Y, as shown. This wheel is numbered from 0 to 0, and represents the tens denomination.

A is the third nu mber-whecl, which works loosely on its axis, and has a cog-gear, B. This wheel is provided with numbers from 0 to 9, and represents the hundreds denomination.

1 will now describe how the motion oftoothed roller I and wheel R is transmitted to the wheels V and A, giving to V one movement to every ten of It, and to A one movement for every ten of V.

D D, Figs. 1, 3, and 4, are'two pinions, of which the right-hand one connects wheels R and V, and the left-hand one wheels V and A. As the actions of these are the same, I will only describe the right-hand one. This pinion has a three-cornered projection, E, Fig. 4, at its end, lying in the plane of flange S, belonging to wheel it, and its portion lying in the plane of gear V on wheel V is a toothed gear meshing with said gear \V. Now, when wheel R has made nine movements, and it is necessary to give a movement to wheel V to register ten, the trigger T of flange S on wheel R strikes one of the three-cornered projections of pinion D, and this pinion being in gear with the toothed flange WV of wheel V, it turns this wheel V the distance of one figure on its periphery, and trigger T then passes by the tlneecornered projection, and wheel It goes on registering units until it has made another complete revolution and is ready to register twenty, when the trigger T engages the threecornered end of pinion D and gives a second motion to wheel V. In progressing from the tenswheel V to the hundreds-wheel A, the trigger Y of wheel V operates in the same way upon the left-hand pinion D, and turns the hundreds-wheel once every ten movements (or a complete revolution) of the tens-wheel. Now, to perform an addition of a column offlgures of, say, six, seven, and nine, we successively depress the levers bearing these numbers, and the racks of these several levers, by their increased number of teeth, turn successively the toothed roller I a distance that shows, lirst,six on the unitswheel; second, three on the units-wheel and one on the tens, representing the addition of six and seven, or thirteen, and, third, two on the unitswheel and two on the tens, representing the addition of thirteen and nine, or twenty-two. After the addition has been performed, the number-wheels are set to zero by the following mechanism, referring to Figs. 1 and 3: The shaft bearing pinions D D is made longitudinally adjustable, so that when moved to the left the three-cornered end of each pinion is moved out of range of the trigger of its actuating-wheel. To do this an arm, G, bears against the right-hand end of this shaft and is attached below to a rocking plate, G", fulcrumed in supports (see Fig. 1) below and provided with a lateral arm. G. Now, when arm G is depressed, G is rocked, and G presses against the end of the shaft of pinion; D and shifts them laterally. To depress arm G, a rack-bar is arranged to slide in a staple, s, and the rear end of said rackbar rides upon the end of arm G, while a handle, 0. projects above through a slot in the case. (Not shown.) Now, to set the number-wheels, it is only necessary to depress handle 0 and pull it toward you, which action gives the necessary motion to arm G" to disengage the pinions D, and also causes rackbar H to fulcrum on the staple s, which throws its back end up into contact with pinion J, and as the rack Ii then is drawn out it turns pinion J and wheel K, and the latter turns pinion G and the nnmbering-whecls,bringing them back to zero, the wheel It being stopped at 0 by the arm G engaging with the pin N in Fig. 8.

Having thus described my in rention, what I claim as new is 1. The operating-levers E, having curved racks L, with teeth upon the inner side of same, in combination with toothed roller 1, rod D, arms F, hung upon rod D and jointed to the levers E, and'the springs G, as and for the purpose described.

2. The combination of the pinions D D, with three-cornered projections E E at one end, the longitudinally-adjustable shaft carrying the same, the number-ing-wheel R, with stop-pin N, and the rocking plate G", with arm G, adapted to push the pinion-shatt end wise and simultaneously engage the pin N, the arm G", and the rack mechanism H O, for setting the wheels, as described.

MIOH AEL DOUGH ET.

Witnesses: V

FRANK PARDON,

Hnwrr'r. 

